Dynamic array of matrices

[Prototipo]

Hi! I need to dynamically create X vectors of matrices (with a known
size of 5x5). It's like a three-dimensional matrix with 2 known
dimensions and the third unknown.

I have something like:

int *matrix[5][5];

But I don't know how to allocate memory for X matrices. How can I do
it?

thanks

 

[Tom St Denis]

Hi! I need to dynamically create X vectors of matrices (with a known
size of 5x5). It's like a three-dimensional matrix with 2 known
dimensions and the third unknown.

I have something like:

int *matrix[5][5];

But I don't know how to allocate memory for X matrices. How can I do
it?

The same way you do with all other matrices

matrix = calloc(X, sizeof(matrix[0]));

Tom

 

[Artie Gold]

Hi! I need to dynamically create X vectors of matrices (with a known
size of 5x5). It's like a three-dimensional matrix with 2 known
dimensions and the third unknown.

I have something like:

int *matrix[5][5];

But I don't know how to allocate memory for X matrices. How can I do
it?

See:

http://www.eskimo.com/~scs/C-faq/q6.16.html

[You *did* read the various FAQs *first*, didn't you? ;-)]

HTH,
--ag

 

[dis]

Hi! I need to dynamically create X vectors of matrices (with a known
size of 5x5). It's like a three-dimensional matrix with 2 known
dimensions and the third unknown.

I have something like:

int *matrix[5][5];

But I don't know how to allocate memory for X matrices. How can I do
it?

#include <stdlib.h>
int main(void)
{
int X = 5;
int (*matrix)[5][5] = malloc(X * sizeof *matrix);
if (matrix != NULL)
{
/* allocation succeeded */
}
free(matrix);
return 0;
}